Web Development with Django Cookbook - Second Edition

Chapter 8. Hierarchical Structures

In this chapter, we will cover the following recipes:

• Creating hierarchical categories
• Creating a category administration interface with django-mptt-admin
• Creating a category administration interface with django-mptt-tree-editor
• Rendering categories in a template
• Using a single selection field to choose a category in forms
• Using a checkbox list to choose multiple categories in forms

Introduction

Whether you build your own forum, threaded comments, or categorization system, there will be a moment when you need to save hierarchical structures in the database. Although the tables of relational databases (such as MySQL and PostgreSQL) are of a flat manner, there is a fast and effective way to store hierarchical structures. ...